Crocheting-machine



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UNITED STATES PATENT OFFICE.

GEORGE D. MUNSING, OF MINNEAPOLIS, MINNESOTA.

CROCHETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 411,046, datedSeptember 17, 1889.

Application filed FebruarylB, 1889. Serial 110500334. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE D. MUNSING, of Minneapolis, in the county ofHennepin and State of Minnesota, have invented certain new and usefulImprovements in Crocheting-Machines, of which the following is aspecification.

The object of this invention is to provide a machine for the manufactureof crocheted fabric either in the form of an edging or trimming foranother fabric or as a complete web.

I design this machine for doing substantially the same work as themachine described in my application for patent filed October 10, 1888,Serial No. 288,301.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of a machine constructed in accordance withmy invention. Fig. 2 is a plan view of the same. Fig. 3 is a frontelevation. Fig. atis a longitudinal vertical section.

In the drawings, 2 represents the base of the machine, which may be ofany suitable size and shape.

Mounted in suitable bearings upon the base of the machine is the maindriving-shaft 5, which is preferably provided with a suitable pulley 7,by means of which power may be applied to the shaft.

Secured to or formed upon the base-plate 2' is a standard or column9,which supports the main portion of the operating parts of the Thestandard is preferably hollow, and the driving-shaft 5 passes throughthe lower portion thereof. Avertical shaft 11 is arranged within thestandard 9 and is provided with a bevel-gear 13, which meshes with asimilar gear 15 upon the shaft 5.

Formed upon or secured to the top of the standard 9 is a cylindricalshell 17, which is preferably open at both ends and may belongitudinally slotted and provided with screws The inner surface of theshell 17 forms the bearing for a hollow arm 21, which is mounted in saidshell. A collar 23, secured to the rear end of the arm 21, retains it inposition.

Mounted in bearings in the arm 21 is a shaft 25, that is provided with abevel-gear 27, that engages with a gear29 upon the shaft 11.. Theforward end of the arm 21 is provided a shaft 57, provided at its upperend with a bevel-gear 59, that meshes with a similar gear with bearingsfor the reciprocating needlebar 31, which is driven from the shaft byany suitable means. I have here shown the shaft 25 provided with a disk33, having a crank-pin 35. This pin engages a block 37, that is securedto the needle-bar.

A shaft 39 is mounted in bearings upon the plate 2, and is provided witha gear-wheel 41, that is engaged by a pinion 43 upon the shaft 5. Thewheel 41 is provided with a patterngroove 45, which is engaged by a stud47, that is adjustably secured to the hollow arm 21. The arm 21 is freeto turn within the shell 17, and as the pattern-wheel 4.1 is turned thearm 21 is oscillated in its bearing, its movements being governed by thegroove 45 in the pattern-wheel 41.

A depending hollow arm 51 is secured upon the'arm 21, preferablydirectly in front of the standard 9. The arm 51 may be secured to thearm 21 by any suitable means. I prefer to provide the upper end of thearm 51 with a cylindrical shell 53, that fits upon the outer surface ofthe arm 21. This shell may be slotted and provided with an adjustingscrew 55. The shell may be clamped firmly upon the arm 21 or itmay be free to turn thereon.

Arranged preferably within the arm 51 is 61 on the shaft, whereby themotion is imparted to the shaft 57.

Upon the lower end of the shaft 57 is a disk-wheel 63, which ispreferably provided with three cam-grooves 65, 67, and;69, the grooves65 and 67 being preferably located in the top of the disk and the groove69 in its under surface.

An arm 71 projects horizontally from the lower end of the depending arm51. This arm is hollow and forms the bearing for a reciprocatinglooper-bar 73. A stud 7 5 on the looper-bar 73 projects through a slotin the 5 arm 71, and engages the groove 65in the disk 63. A looper 77,consisting of a hook-shaped needle, is carried by the looper-bar 73. The

looper 77 is provided with a sliding latch 79, having a projection 81,that engages a rod 83. 100 The rod 83 passes through bearings 85 on thearm 71, and a spring 87 bears on the rod.

- of the feed-wheel1.09.

The friction between the spring and the rod 83 is sufiicient to overcomethe friction between the looper and the latch. A shoulder 89 011 thebody of the looper strikes the pro jection 81 on the latch after thelooper has moved a certain distance, and the latch and looper then movetogether. \Vhen the looper moves in the other direction, the hook on thelooper strikes the end of the latch after the looper has moved a certaindistance, and thereafter the looper and latch will move together.

A loop-holder is also preferably arranged in connection with the looper7 7. This loopholder consists of a rod 9l,pivotally mounted 011 the arm71 and engaging the groove 67 in the disk 63. By means of the groove 67the forward end of the rod 91 is swung toward and from the looper. Theforward end of the rod 91 is provided with an intnrned finger 93, thatextends close to the looper when the forward end of the rod is swungtoward the looper.

A stitclrcaster 95 is also preferably arranged in connection with thelooper 77. This stitch-caster consists, preferably, of an arm throughwhich the looper passes. This arm is mounted upon a rod 97, that issupported in bearings upon the arm 71. The rear end of the rod isprovided with a lug that engages the groove 69 in the disk (53.

A shaft 99 is mounted in bearings on the plate 2, and is provided with aratchet-wheel 101, that is operated by cam projections 103 on the wheel11 through a pivoted lever 105 and connecting-rod 107.

A cup-shaped feed-wheel 10!) is mounted upon the shaft 99. This wheel ispreferably provided with a series of spurs 111 and a series of notches113.

The needle-bar 31 is provided with an or dinary eye-pointedsewing-needle 4, which is arranged to pass through one of the notches113 in the feed-wheel when the needle-bar is directly over the wheel.

A swinging take-up bar [3 is mounted on the forward end of the arm 21.This take-up bar is provided with openings 8, through one of which thethread or yarn passes. Its opposite end is provided with a stud 10,which engages a cam 12 011 the shaft 25. By this means the take-up baris swung upon its pivot, its forward end moving up and down as the camengages its opposite end.

An ordinary spring-tension device 11 is preferably provided, over whichthe thread or yarn passes. I prefer also to provide a horn 18, which issecured upon a support 20 in front The threads are drawn over this hornas the needle is swung outward, and slips off from the horn as thefeed-wheel is turned.

I also prefer to provide a work-releaser, consisting, preferably, of abar 2-1, having its end restin upon the top of the feed-wheel 1.00. Theopposite end of this bar is engaged by an eccentric 26 upon thedriving-shaft 5. As the shaft is rotated this eccentric causes the bar21 to be alternately raised and depressed, and thereby to lift the workfrom the spurs upon the feed-wheel as the feed-wheel is rotated.

In order to regulate the oscillation of the arm 21, I prefer to make thestud 17 adjustable, securing it in position by means of the set-screwa6, and to make the cam-wheel 11 adjustable upon its shaft 39, securingit in position by means of a set-screw 42. I also make the wheel 43adjustable upon the shaft 5, securing it by means of the set-screw 41.By adjusting the cam-wheel ll nearer to or farther from the standard 9,upon which the arm 21 is mounted, this arm may be given a greater orless oscillation, and thereby the lateral movement of the needleandlooper be regulated.

The operation of this machine is as follows: Power is applied to theshaft 5 and thereby all of the mechanism is operated. The necdle 4 andthe looper 7 7 are each given a reciprocating movement, the line ofreciprocation of the looper being across the line of reciprocation ofthe needle. The work which is done by this machine is substantially thesame as that which is done by the machine described in my formerapplication for patent, hereinbefore referred to. When the needle isover the feed-wheel, it passes down through one of the notches thereinto the position shown in Fig. 1. The looper then advances and passesbetween the needle and the thread or yarn. The needle then begins toascend and the looper to recede, the thread being engaged by the hook ofthe looper. The take-up bar 6 swings upward, drawing the thread closelyinto the hook of the looper. The looper recedes until its hook is closedby the latch 7.). By this time the needle has passed above the flange ofthe feed-wheel and then the needle and looper both move laterally awayfrom the face of the feed-wheel. The needle again descends, the looperadvances opening the latch, and the loop which. is in the heck of theneedle slides outof the hook and onto the body of the looper, where itis held by the stitch-holder 91. The needle again ascends and the looperrecedes with another loop in its hook, the latch closes, and thestitch'caster new advances, casting the loop on the body of the looperand forming a stitch. One or more stitches, as desired, may be formed atthis point. The needle and looper then swing back in unison to theiroriginal position and the operations are re peated. V

The pattern of the shell or work will be governed by the form of thegroove 45 in the wheel 4;].

I claim as my invention-- 1. In a machine of the class described, thecombination, with a longitudinally-reciproeating and laterallynnovableneedle, of a longitudinally-reciprocating and laterally-movable looperarranged to reciprocate transversely to the line of reciprocation ofsaid IIO needle, and means for moving said needle and looper laterallyin the same direction in unison with each other, substantially asdescribed.

2. The combinatiomwith a feed-wheel having a step-by-step movement, of alongitudinallyreciprocating and laterallymovable needle,andalongitudinally-reciprocating and laterally-movable looper arranged toreciprocate transversely to the line of reciprocation of said needle,substantially as described.

3. The combination, with a notched and spurred feed-wheel, of alongitudinally-reciprocating and laterally-movable needle, and alongitudinally-reciprocating and laterallymovable looper arranged toreciprocate transversely to the line of reciprocation of said needle,substantially as described.

4. The combination, with a'reciprocating and laterally-movable needle,of a reciprocating and laterally-movable looper arranged to reciprocatetransversely to the line of reciprocation of said needle, and providedwith a sliding latch, substantially as described.

5. The combination, with a reciprocating needle, of a reciprocatinglooper arranged to reciprocate transversely to the line of reciprocationof said needle, and provided with a sliding latch and a reciprocatingstitch-caster engaging said looper, substantially as described.

6'. The combination, with a reciprocating needle, of a reciprocatinglooper arranged to reciprocate transversely to the line of reciprocationof said needle, and provided with a sliding latch, a reciprocatingstitch-caster, and a swinging loop-holder, substantially as described.

7. The combination, with an oscillating arm 21 and a reciprocatingneedle supported upon said arm, of a depending arm secured upon saidoscillating arm and moving therewith, and a longitudinally reciprocatinglooper supported upon said depending arm and arranged to reciprocatetransversely to the line of reciprocation of said needle, substantiallyas described.

8. The combination, with the oscillating arm 21 and the reciprocatingneedle supported upon said arm, of the adjustable wheel 41, providedwith the cam-groove 45, and the adjustable stud 47, engaging said grooveand connected to the arm 21, substantially as described, and for thepurpose set forth.

9. The combination, with the hollow oscillating arm 21 and the hollowdepending arm 51, supported thereon, of the shaft 25, arranged in saidarm 21, the shaft 57, arranged in said depending arm, the needle-barconnected with said shaft 25, the cam-disk 63, secured to said shaft 57,and the reciprocating looper supported upon said arm 51 and arranged tobe operated by said cam-disk, substantially as described.

In testimony whereof I have hereunto set my hand this 14th day ofFebruary, 1889.

GEORGE D. MUNSING.

In presence of-- A. 0. PAUL, J. JEssEN.

